Fuel Injector Pencil Nozzle 7W7030 0R8784

Part Number: 7W-7030
Related Reference: 0R-8784
Component Type: Fuel Injector Pencil Nozzle
Fuel: Diesel
Fuel System: Mechanical diesel fuel injection
Engine Family: Caterpillar 3400 Series
Related Engines: 3406B, 3406C, 3408, 3412, 3412C
Condition: Brand new aftermarket replacement
Use: Injector replacement, fuel-system repair, and diesel engine servicing

The 7W7030 is listed for several Caterpillar 3400 Series diesel engine applications. Parts catalogs identify the 7W7030 / 0R8784 combination with the 3400 engine family, while application listings specifically include 3406B, 3406C, 3408, 3412, and 3412C engines. It is also listed for heavy equipment such as Caterpillar 631E Series II wheel tractor-scrapers.

Compatibility Note: Always verify the original nozzle number, complete injector assembly number, engine model and serial number, and equipment configuration before ordering. 7W7030 and 0R8784 are widely cross-referenced, but they can refer to different levels of the fuel-injection assembly.